Detachable wheel-rim.



, R.y HAUPT. DETAGHABLE WHEEL BIM.

APPLICATION FILED DEO. 16, 1913.

,1@3003 f Patented July 7,1914.

nunonr n anr'r, or nnnovnn, aanneemt personarse WHEEL-min.

Licence.

Specification of Letters Patent. I

Rttented July 7, i914.

' ppl'lcation tiled December i6, 1912. Serial No. 737,015.

T all whom 'it may concern:

Be it known that I, RUDoLr HAUPT, a subject of the King of Prussia, and residing at 34 Ferdinand-Vllallbrechtstrassa Hanover, Germany, have invented'a certain new and useful Improvement in Detachable VVheel-Rims; and I do. hereby declare `the following to be a full, clear, and exact de scription of the invention..

1 The present invention relates to quickly,

detachable wheel rims and particularly to rims 'carrying solid tires, the object of myinvention being to provide an improved mounting and demounting ,device therefor.

In the accompanying drawings, Figure l y is a section through a portion of 'a wheel in which my invention is embodied in one form; Figs. 2 and 3 are respectively side and face views of the locking wedge ring drawn to a smaller scale; and Fig. 4f is a' section of a wheelof another type in which my invention is embodied in modilied form. Figs'. 5 and Gare transverse section and sideelevation respectively of portion of a wedge ring slightly modified from the form shown in Figs, 2 and 3.

In the form illustrated the invention is applied to a wheel of the type in which the tire is permanently' mounted on a ring which may be properly termed an outer or detachable rim. rlvhe lined rim o is provided externally at one side of its periphery 1 with an inclined face and fitted on it externally at the other side a conical wedge ring c the taper of which corresponds to that of the inclined surface Z). A wedge ring l in assembled position surrounds this fixed rim o and is Aprovided on its inner periphery with inclined faces cooperating with the faces and "c ot the fixed rim. This wedge ring, which holds in position the outer detachable rim for the rubber tire e is provided as shown in Figs. 2 and 3) with an inwardly extending .liange abutment Z3 or series of lugs, Z1 (Figs. 56 and .l-3 respectively) perforated to permit the passage ni the bolts f1 therethrough as well through the fixed rim, so that the nuts f which screw' on the bolt ends and engage the wedge vring thus easily force the latter .into locking position. The wedge ring is iurther `formed with a number of slitsl cl2 that, extend .trom botlrsides but not entirely, across the` ring and which admit of the ring being'readily pressed firmly onto the deed rim or in other words being the Wheel.

y clamped tightly in.. place between the fixed rim 'o and the detachable rim by means of thenuts j". l

Screwed into the perforations in theliange d3. or lugs de of the wedge ring through which the bolts flpass, are centrally apertured releasing screws'g which a'l'ord means for withdrawing the wedge ring 'when it is desired to remove the detachable rim. ln order to eliect this, the nuts jv end their bolts f1 mustv first be removed. r key may then be inserted in the rectangular bore ot' the screw g and the latter screwed in against the abutment flange Il, ofthe fixed rim. Obviously continued rotation of the screw g a-fter it reaches this position, results 'in the withdrawal of the wedge ring, thus freeing the demountable rim. The number of slits formed inthe wedge ring d and the number of bolts and nuts f, f1, and likewise the number of detaching screws g may be as many or as few' as desired.

The invention may be applied equally well to wheels with a plurality of detachable rims as shown in Fig. Il. Here the, fixed rim al has a pair ot' beveled faces on each side oi the mid-plane of the wheel, and the wedge rings if are drawn on from opposite sides of ln the form shown the two cen trai wedge faces on the fixed rims lare formed by a ring` c1 positioned on the fixed rim al by an internal Harige c2 which engages an annular recess in the outer periphery oi the fixed rim. The drawn-on bolts pass through the flanges Z1 of both wedge rings, Aand the releasing screws y effect the withdrawal oit the wedge ring in precisely the same manner as hereinbetore described.

I claim as my invention z# l.. In a detachable rim device for wheels, a iXed rim and a detachable rim and interposed between the same a wedge ring transu versely slotted from opposite edges of the ring at a plurality of points spaced around the same, and means for forcing said wedge ring into locking position between said fixed and vdetachable rims.

2. In a detachablerim device for wheels, a fixed rim and a detachable rim and interposed between the same ,a wedgering transversely slotted alternately from opposite edges of the ring at a plurality of points spaced around the same, and means for forcing said wedge ring into locking position between said xed and detachable rims.

3. In a detachable rim a fixed rim and a detachable rim and interposed between the same a wedge ring transversely slotted .at a plurality of points spaced around the same, a radially-inward-extending abutment at the side of said -wedge ring, a centrally perforated releasing screw f threaded in said abutment and adapted tQ a fixed rim,

' ring beyond t e edges of said releasing screw.

,4. In a detachable rim'device for wheels, a detachable rim and interposed between the same a wedge ring having a radially inward extending abutment at the device for wheels,

bolt

side thereof, means forl securing said wedge ring in position, a centrally perforated releasing screw threaded, in sa'd abutment, a straight bolt forming' a portion of said wedgering securing means and passing through said fixed rim and said 4releasing serewvwithout enga ing the latter and a nut threaded on the en of said boltand engag-lv ing said abutment on the wedge ring beyond the edges of said releasing screw.

In testimony whereof I have signed my name to this specication, in of two subscribing witnesses.

the presence.

let,

vRUDOLF HAUPT...

Witnesses: *OT'ro FHLAN,

Gnsmv KOCH. 

